diff --git a/tests/Makefile.am b/tests/Makefile.am
index 78666e9..a28aa7f 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -160,7 +160,7 @@
 gprs_gprs_test_LDADD = $(LDADD) $(top_builddir)/src/gsm/libosmogsm.la
 
 lapd_lapd_test_SOURCES = lapd/lapd_test.c
-lapd_lapd_test_LDADD = $(LDADD) $(top_builddir)/src/gsm/libosmogsm.la
+lapd_lapd_test_LDADD = $(LDADD) $(top_builddir)/src/gsm/libosmogsm.la $(top_builddir)/src/isdn/libosmoisdn.la
 
 msgb_msgb_test_SOURCES = msgb/msgb_test.c
 
@@ -315,7 +315,7 @@
 exec_exec_test_LDADD = $(LDADD)
 
 i460_mux_i460_mux_test_SOURCES = i460_mux/i460_mux_test.c
-i460_mux_i460_mux_test_LDADD = $(LDADD) $(top_builddir)/src/gsm/libosmogsm.la
+i460_mux_i460_mux_test_LDADD = $(LDADD) $(top_builddir)/src/isdn/libosmoisdn.la
 
 bitgen_bitgen_test_SOURCES = bitgen/bitgen_test.c
 bitgen_bitgen_test_LDADD = $(LDADD)
diff --git a/tests/i460_mux/i460_mux_test.c b/tests/i460_mux/i460_mux_test.c
index 7695cb4..1be35e7 100644
--- a/tests/i460_mux/i460_mux_test.c
+++ b/tests/i460_mux/i460_mux_test.c
@@ -1,7 +1,7 @@
 
 #include <osmocom/core/utils.h>
 
-#include <osmocom/gsm/i460_mux.h>
+#include <osmocom/isdn/i460_mux.h>
 
 static void bits_cb(struct osmo_i460_subchan *schan, void *user_data,
 		    const ubit_t *bits, unsigned int num_bits)